Fix parsing db url, remove 24h state, add db saving

src/main/scala/app/Main.scala

@@ -9,7 +9,7 @@ import server.Server
 object Main extends IOApp {
   def run(args: List[String]): IO[ExitCode] = {
     // postgres://weather_tool:XID547uldXliJBa@weather-tool-db.flycast:5432/weather_tool?sslmode=disable
-//    println(System.getenv("DATABASE_URL"))
+    //    println(System.getenv("DATABASE_URL"))
 
     for {
       transactor <- DBConnection.transactor[IO]